Biology, asked by aditya588, 11 months ago

you answer any one of this
and will be mark as brainliest

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Answered by Cicada
1
a) Lack of management of sevage waste
Answered by OOOIRKIOOO
1

A. LACK OF MANAGEMENT OF SEWAGE TREATMENT

B. Sewage treatment generally involves three stages, called primary,   secondary and tertiary treatment. Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface.

C.In situ burning: Freshly spilled oil is ignited while it’s still floating on the water.



OOOIRKIOOO: THNX
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